PetSafe 310 Cat Flap Tunnel Extensions

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  • Wall tunnels designed to allow wall installation for the PetSafe Cat Door 4-Way Locking Flap
  • Each wall extension tunnel section provides 1 7/8 in. framing
  • Measure the wall thickness before purchasing pet door extension pieces
  • Make sure you have enough wall liners to match the wall thickness
  • Available in white only, but can be painted
  • Item has been discontinued

The PetSafe 310 cat wall tunnel sections are designed to frame out the Petsafe 4-Way Locking Cat Flap (purchased separately) for installation in walls. Each tunnel section adds 1 7/8", so make sure to accurately measure your total wall thickness prior to purchasing. The PetSafe 4-Way Locking Cat Flap is self-framing from 0"-2 1/4", so you will need enough tunnel sections to match the remaining thickness of your wall (they can be trimmed down). Although discontinued, these also fit the Staywell 300, 400, and Infra-Red Electronic 500 models if you happen to need more tunnel sections. The tunnel sections come in white only, but they can be painted if need be. Not the PetSafe part you're looking for? Take a look at our full selection of replacement parts for PetSafe cat doors and dog doors or browse other PetSafe products.

Additional Information



Installation Instructions

Note: If you are unsure how to install a cat flap into a wall, we recommend hiring a professional to help.

Tools you might need:

  • Hammer
  • Jigsaw
  • Drill & drill bits
  • Wire Cutter
  • Screwdriver
  • Tape Measure
  • Pencil
  • Level
  • Scissors
  • Duct Tape
  • Caulk
  • Stud Finder
  • Framing square

1. Locate the studs in the wall. Draw a vertical line between two studs around 6-8 inches above the ground

2. Measure and mark your cat's shoulder height on the vertical line. Draw a straight horizontal line through your mark using a level to make sure it is straight.

3. Cut out the correct template size. Match the shoulder and center lines you marked on the wall to the ones on the template. Tape the template to the wall and trace the outline with a pencil.

4. Remove the template and drill holes inside the corners. Use a jigsaw to connect the drill holes, following the lines.

5. Check the fit by placing the frame with the flap inside the cutout. If it doesn't fit, enlarge the hole slightly in the necessary areas until it fits.

6. Put the center locator into the cutout from the inside. Put the A side of the door into the wall and hold it in place temporarily using drywall screws. Lift the flap and push in the center locator until it touches the outside wall. Mark the holes on the center locator. Remove the door from the inside wall. Drill holes into the marked holes.

7. Drill holes inside the corners. Use a jigsaw to connect the drill holes, following the lines.

8. Check the fit by placing the frame with the flap inside the cutout. Adjust as needed.9. Drill holes for the toggle bolts in the holes the drywall screws were. Link the interior and exterior frames together with the flap and tunnel sections. Loosely install the bolts on the inside and outside of the cat door.


What model tunnel section do I need for a PetSafe 300 door to put it through a 5" wall, and how many tunnel sections will I need?

The PetSafe 310 Cat Flap Tunnel Sections would fit for the PetSafe 300 door. The PetSafe 300 is self-framing from 0" to 2 1/4" out of the box and tunnel extensions are available which may be added by the user to increase the maximum to any length. For your particular situation you would need 2 extra tunnel sections to put it through a 5" wall since each tunnel section is 1 7/8" wide.

I have a Staywell 300 with model number 04SW310. Will this tunnel section work?

Yes it will.

Will the PetSafe 310 Cat Flap Tunnel work with the Staywell 500?

Yes it does


Warranty Information:

Radio Systems Corporation is the industry leader in Consumer Pet Electronics; products are marketed under the PetSafe, Innotek, Invisible Fence, Guardian, Staywell, and SportDOG brands. Radio Systems Corporation and its authorized resellers (who display the appropriate sanctioned logos) only sell new products in original packaging. Product represented as used, refurbished, or “as-is”, or not in the original packaging will not be covered by our warranty, or any consumer support.

We are committed to consumer satisfaction. To that end Radio Systems Corp. cautions consumers from purchasing any product other than product in its original packaging or specially marked refurbished packaging.

Proof of Purchase must be provided to our customer care center before a warranty claim can be honored. For your convenience, you may register your product and provide proof of purchase immediately after your purchase. Thereafter, proof of purchase will not be required to fulfill a warranty claim. Products may be registered at Proof of purchase is accepted via e-mail (, fax, or traditional mail. Proof of purchase is defined as the sales receipt or copy of the sales receipt.

Fax: 800-332-7942

Mail: Attn: Customer Care Center/POP Radio Systems Corporation 10427 PetSafe Way Knoxville TN 37932

One Year Non-Transferable Limited Warranty:

What is Covered

Radio Systems Corporation, owner of the PetSafe Brand, (hereinafter referred to as “PetSafe”) warrants to the original retail consumer purchaser, and not any other purchaser or subsequent owner, that its PetSafe product, when subject to normal and proper residential use, will be free from defects in material or workmanship for a period of one (1) year from the purchase date. An “original retail consumer purchaser” is a person or entity who originally purchases the product or a gift recipient of a new product that is unopened and in its original packaging. When serviced by PetSafe Customer Service, PetSafe covers labor and parts for the first year of ownership; after the first year, a service or upgrade charge will apply relative to replacement of the product, with new or refurbished items at PetSafe’s sole discretion. The limited warranty is non-transferable and shall automatically terminate if the original retail consumer purchaser resells the PetSafe product or transfers the property on which the PetSafe product is installed. In the event of defect, these are your exclusive remedies.

Proper Product Use

This product is designed only for use with domesticated animals; do not use this product for any other purpose. However, the specific temperament of your animal may not work with this product. We recommend that you do not use this product if your animal is aggressive. If you are unsure whether this product is appropriate for your animal, please consult with your veterinarian or a certified trainer before you use this product. Please see the instruction manual for additional important information.

What is Not Covered

This non-transferrable limited warranty does not provide protection against, and PetSafe will have no liability under this non-transferrable limited warranty for any damage to or defects in the products caused by any animal, loss of product(s), failure, defect or damage caused by events and situations beyond normal residential exposure conditions, including, but not limited to: commercial use, misuse, abuse, neglect, improper installation or installation not in accordance with PetSafe’s instructions, use of non-PetSafe accessories, impacts of foreign objects, acts of God, abnormal or improper use, improper storage, attempted repair or service by anyone other than PetSafe Customer Service, accident, alteration, defects in or failure of the surface the PetSafe product is installed in or upon, discoloration or other damage caused by pollution, sunlight, other environmental conditions, mold, dirt, mildew, or exposure to harmful chemicals and any other cause not involving manufacturing defects in the PetSafe product. Under no circumstances will PetSafe be liable for any non-PetSafe labor charges or any expenses whatsoever in connection with the removal, repair, or installation of either the original or replacement component(s) relative to in-ground fence installation, kennel installation, pet door installation, and other permanent, semi-permanent, or fixture type installations on the retail consumer purchaser’s property.

Registering the Product

Within thirty (30) days of purchase, please go to to register your purchase. A sales receipt shall be required to obtain warranty coverage. Please keep this information in a safe place.

Making a Warranty Claim

To obtain warranty service, call the PetSafe Customer Care center. In the United States or Canada, 1-800-732-2677; in Australia, 1800 786 608; in New Zealand, 0800 543 054.

Pursuant to this non-transferrable limited warranty, PetSafe will replace the part with a new or refurbished part. This non-transferrable limited warranty will then apply to either the new or refurbished part for the remainder of the original non-transferrable limited warranty period.


Replacement as provided under this non-transferrable limited warranty is the exclusive remedy of the consumer. Neither labor to remove the part nor labor to install the refurbished or replaced part is covered.

This non-transferrable limited warranty is in lieu of all other express warranties. PetSafe expressly disclaims and excludes all other warranties, express or implied, including without limitation, the warranties of merchantability and fitness for a particular purpose. PetSafe also disclaims and excludes all liability for incidental, consequential, punitive, direct, indirect, special, or any other damages arising out of or connected with the purchase, use, or misuse of this product or for the breach of any express or implied warranties or breach of contract or otherwise. Purchaser assumes all risks and liabilities from the use or misuse of this product. PetSafe does not authorize any other person or agent to make any other express or implied warranties.

Furthermore, PetSafe will not be liable for any loss, damage, or injury resulting from delay in delivery of replacement parts or for any failure by PetSafe to perform covered repair work due to circumstances beyond PetSafe’s control.

Governing Law

This non-transferrable limited warranty shall be governed by the law of the State of Tennessee, U.S.A., and by the laws of the United States of America, excluding their conflicts of laws principles. Furthermore, the United Nations Convention on Contracts for the International Sale of Goods is hereby excluded in its entirety from application to this non-transferrable limited warranty. Jurisdiction and venue shall be exclusive to the courts of Knox County, Tennessee. These warranties give you specific legal rights, and you may also have other rights that vary from state to state or country to country. Some states or countries do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.

Making a Warranty Claim:

If you need assistance or to make a warranty claim, please contact our Customer Care Center for help in troubleshooting and, if necessary, to arrange a warranty repair for your product.

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